Mooney explained that he had become a member of the TWU Executive Board by running an outside campaign and defeating the official candidate for that position.
2005 strike action
Mooney champions the rights of the common man, accordingly he objected strenuously on December 22, 2005, when Local 100 led by Roger Toussaint declared an end to the three-day strike. Mooney was one of only 4 of the 42 members of the Executive Committee of Local 100 who voted to continue the strike.
Election for Recording Secretary of the Union
In December 2006, John Mooney ran for Recording Secretary under the Union Democracy slate and came in third behind Roger Toussaint's One Union slate, and the Rail & Bus United slate. He has since gone back to working as a station agent in Brooklyn and will not be seeking an elected position in 2009.